I-Inconel iwumndeni we-austenitic nickel chromium esekelwe ama-super alloys.
Ama-Inconel alloys ayizinto zokumelana ne-oxidation corrion ezifaneleke kahle ukusebenza ezindaweni ezingaphansi kwengcindezi kanye
ukushisa.Uma ishiswa, i-Inconel yenza ungqimba lwe-oxide, oluzinzile, oludlulayo oluvikela ubuso ekuhlaselweni okwengeziwe.I-Inconel igcina
amandla phezu kwezinga lokushisa elibanzi, elikhangayo ekusetshenzisweni kwezinga lokushisa eliphezulu lapho i-aluminium nensimbi kunganqotshwa khona
ngenxa yezikhala zekristalu ezibangelwa ukushisa.Amandla okushisa aphezulu e-Inconel athuthukiswa yisisombululo esiqinile
ukuqinisa noma ukuqina kwezulu, kuye nge-alloy.
I-Inconel 718 iyingxubevange ye-nickel-chromium-molybdenum eklanyelwe ukumelana nezinhlobonhlobo zezindawo ezigqwala kakhulu, ukugqwala kwe-pitting kanye nemifantu. Le nickel steel alloy futhi ibonisa isivuno esiphezulu kakhulu, izakhiwo eziqinile, kanye ne-creep-rupture emazingeni aphezulu okushisa. Le ingxubevange ye-nickel isetshenziswa kusukela emazingeni okushisa e-cryogenic kuze kufike kusevisi yesikhathi eside ku-1200° F. Esinye sezici ezihlukanisayo zokubunjwa kwe-Inconel 718′s ukungezwa kwe-niobium ukuvumela ukuqina kweminyaka okuvumela ukushunqiswa nokushisela ngaphandle kokuqina okuzenzakalelayo ngesikhathi sokushisisa nokupholisa. . Ukwengezwa kwe-niobium kusebenza ne-molybdenum ukuqinisa i-matrix ye-alloy futhi kunikeze amandla aphezulu ngaphandle kokwelashwa okuqinisa ukushisa. Amanye ama-alloys e-nickel-chromium adumile aqiniswa iminyaka ngokungezwa kwe-aluminium ne-titanium. Le ingxubevange yensimbi ye-nickel yenziwa kalula futhi ingase ishiselwe esimweni esiqinile noma esinemvula (iminyaka) eqinile. Le superalloy isetshenziswa ezimbonini ezahlukahlukene ezifana ne-aerospace, ukucubungula amakhemikhali, ubunjiniyela basolwandle, imishini yokulawula ukungcoliswa komhlaba, kanye neziphehlisi zenuzi.
Into | Iphutha 600 | Ikhoneli | Isilinganiso 617 | Ikhoneli | Ikhoneli | Ikhoneli | Ikhoneli | |
601 | 690 | 718 | X750 | 825 | ||||
C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
Fe | 6~10 | phumula | ≤3 | phumula | 7~11 | phumula | 5~9 | ≥22 |
P | ≤0.015 | ≤0.02 | ≤0.015 | - | - | - | - | - |
S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
Cu | ≤0.5 | ≤1 | - | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
Ni | ≥7.2 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
Co | - | - | 10~15 | ≤10 | - | ≤1 | ≤1 | - |
Al | - | 1-1.7 | 0.8-1.5 | ≤0.8 | - | 0.2-0.8 | 0.4-1 | ≤0.2 |
Ti | - | - | ≤0.6 | ≤1.15 | - | - | 2.25-2.75 | 0.6-1.2 |
Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
Nb+Ta | - | - | - | 4.75-5.5 | - | 4.75-5.5 | 0.7-1.2 | - |
Mo | - | - | 8~10 | 2.8-3.3 | - | 2.8-3.3 | - | 2.5-3.5 |
B | - | - | ≤0.006 | - | - | - | - | - |